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Pollution-preventing and driving device for internal combustion engines

  • US 4,312,310 A
  • Filed: 04/17/1979
  • Issued: 01/26/1982
  • Est. Priority Date: 04/24/1978
  • Status: Expired due to Term
First Claim
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1. A pollution-preventing and power-recovery device for internal combustion engines comprising, in combination:

  • (a) A power-storing device which accumulates mechanical power while the engine is in its normal running conditions during the run of the vehicle in smooth traffic conditions(b) Sensing means for detecting the conditions of engine idling during a forced stop of the car;

    (c) Means connected to said sensing means for cutting off the fuel intake to the engine;

    (d) Means connected to said sensing means for causing the actuation of said power-storing device as the idling run conditions of the engine are detected;

    (e) Timing means for rendering said pollution-preventing and power recovery device actuable for a preselected time at the user'"'"'s choice; and

    (f) Means for resetting said fuel cut-off means and said actuation means, as defined at (c) and (d), as soon as the conditions of normal run of the vehicle on which said internal combustion engine is installed are resumed, said power-storing device comprising(g) A fuel actuated pump, a pressure accumulator for accumulating a working fluid for said pump, mechanical coupling means for disconnectably connecting said pump to said engine for driving same and being driven thereby according to a running mode of said engine, and a unit for regulating the rate of flow of fluid through said pump in accordance with the pressure of said working fluid in said accumulator.

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